Which of these organisms have cell walls? Which have chloroplasts? Describe their organization.
Paramecium
Amoeba
Chilomonas
Volvox
Paranema
Since this is not my area of expertise, I searched Google under the key words "Paramecium " to get these possible sources:
http://en.wikipedia.org/wiki/Paramecium
http://www.bio.umass.edu/biology/conn.river/parameci.html
http://www.ruf.rice.edu/~bioslabs/studies/invertebrates/paramecium.html
You can do similar searches for your other terms.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
To determine which of these organisms have cell walls and which have chloroplasts, we can refer to their characteristics and organization.
1. Paramecium: Paramecium is a single-celled microorganism belonging to the group of ciliates. It possesses a cell wall known as a pellicle, which provides support and protection. However, paramecium does not have chloroplasts. Instead, it obtains energy through the ingestion of food particles.
2. Amoeba: Amoeba is another single-celled microorganism belonging to the group of protozoans. Unlike paramecium, amoeba does not have a cell wall. Instead, it has a flexible, translucent membrane called a cell membrane that surrounds its cytoplasm and organelles. Similarly to paramecium, amoeba also lacks chloroplasts, and it obtains energy through the process of phagocytosis, where it engulfs small food particles.
3. Chilomonas: Chilomonas is a flagellate protist, meaning it has one or more whip-like structures called flagella that enable movement. Like paramecium, chilomonas possesses a cell wall for support and protection. However, it also does not have chloroplasts and relies on external sources for obtaining energy.
4. Volvox: Volvox is a colonial green algae. It consists of multiple individual cells working together as a collective organism enclosed within a gelatinous matrix. Each individual cell of Volvox has a cellulose cell wall, which provides structural support. Additionally, Volvox contains chloroplasts within its cells. These chloroplasts perform photosynthesis, converting light energy into chemical energy, allowing Volvox to produce its own food.
5. Paranema: Paranema is a unicellular green alga, similar to Volvox. However, unlike Volvox, Paranema does not form colonies. It has a cellulose cell wall for support and protection, similar to its colonial counterparts. Additionally, Paranema possesses chloroplasts, enabling it to carry out photosynthesis.
In summary:
- Paramecium, Chilomonas, and Paranema have cell walls made of different materials, offering support and protection.
- Volvox and Paranema possess chloroplasts, allowing them to perform photosynthesis and produce their own food.
- Amoeba lacks both cell walls and chloroplasts, obtaining energy through the ingestion of food particles.